Interest and Other Expense (Income), Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Income and Expenses [Abstract]
Interest income	$ (21)	$ (79)	$ (65)
Interest expense from debt and amortization of debt discount and deferred financing costs	99	90	140
Unrealized gain on equity investment	(3)	(38)	0
Other expense (income), net	12	1	(4)
Interest and other expense (income), net	$ 87	$ (26)	$ 71